fix AppleClang 13.0.0.13000029 compatibility

tbox/src/wLazy.h

@@ -41,7 +41,7 @@ public:
     Lazy(int _np) : value(), np(_np) {}
     ~Lazy()
     {
-        delete value;
+        delete static_cast<T *>(value);
         //std::cout << "lazy pointer deleted\n";
     }
     T &get()